Isn't this more a product of the hype though? At worst you're describing a product marketing mistake, not some fundamental shortcoming of the tech. As you say "chat" isn't a use case, it's a language-based interface. The use case is language prediction, not an encyclopedic storage and recall of facts and specific quotes. If you are trying to get specific facts out of an LLM, you'd better be using it as an interface that accesses some other persistent knowledge store, which has been incorporated into all the major 'chat' products by now.